Shemoth (Exodus) 12:26-27

“And it shall be, when your children say to you, ‘What does this service mean to you?’ “then you shall say, ‘It is the Pĕsaḥ slaughtering of יהוה, who passed over the houses of the children of Yisra’ĕl in Mitsrayim when He smote the Mitsrites and delivered our households.’ And the people bowed their heads and did obeisance.